Needle-thread take-up and controlling device for sewing-machines.



F. W. MBRRIGK. NEEDLE THREAD TAKE-UP AND CONTROLLING DEVICE FOR SEWING MACHINES.

AIPLIOATION IIILED 001212. 1905.

Patented Sept. 7, 1909.

4 SHEETS-SHEET 1.

. jnveni'aro y @xova, h Qom u aflttorney r P. W. MERRIOK. NEEDLE THREAD TAKE-UP AND CONTROLLING DEVICE FOR SEWING MACHINES.

APPLICATION nun new. 12. 1905.

Patented Sept. 7, 1909.

4 SHEETS-SHEET 2 Wa'nases; V in 276226292".-

(mm/L WW 0w. sv mc F. W. MERRICK.

NEEDLE THREAD TAKE-UP AND CONTROLLING DEVICE FOR SEWING MACHINES. APPLICATION FILED 001212. 1905.

933,479, Patented Sept. 7. 1909.

4 SHEETS-8HEET s.

i I Q Wtnesses: In r/e nto 7'.

qgtorney P. W. MERRIGK. NEEDLE THREAD TAKE-UP AND CONTROLLING DEVICE FOR SEWING MACHINES.

APPLICATION FILED 00112. 1905.

@ shown as are necessary for the pro is a view similar to Fig. 5, showing UNITED STATES PATENT OFFICE.

FRANK W. HERRICK, F BOSTON, MASSACHUSETTS, ABSIGNOR TO UNION LOCK STITCH COMPANY, 015' BOSTON, MASSACHUSETTS, A CORPORATION OF MAINE.

Specification 0! Letters Patent.

Patented Sept. '7, 1909.

Application filed October 12, 1905. Serial No. 282,431.

To all whom it may concern:

Be it known that I, FRANK 'W. Mnnmcx, a citizen of the United States, residing at Boston, in the county of Suffolk, State of Massachusetts, have invented a certain new and useful 1m rovement in Needle-Thread Take-Up and ontrolling Devices for Sewing-Machines, of which the followingis a specification, reference being had therein to the accmupauying drawings.

The drawings illustrate certain portions of a hooked needle, lock-stitch, wax-thread sewing machine with the invention appl ed thereto, only such parts of the machme being isclosure of the nature and relations 0 the invention.

In the drawings,-Figure 1 shows the said portions in elevation, looking at the left-hand end of the machine, the take-up device bemg represented as partially retracted, with the slack-thread retained by the thread-detaincrs. Fig. 2 is a front elevation, partly broken away to show features that would otherwise be concealed. Fig. 3 is a rear elevation. Fig. 4 is a view in vertical section on the plane indicated by the dotted line 4, l, in F 3. Fig. 5 is a view in elevation from the snme point of View as in Fig. 1,

- showing certain of the parts in positions differing from those which are represented in Fig. l. the take-up device having began its operative stroke and the thread-grip being almost on the point of being closed. 6 t e thread-grip closed and the take-up device at the extreme point of its operative stroke. Fig. 7 is a sectional view of the take-up device and the supporting means therefor. Fig. 8 is a detail view illustrating a modification in which a crank is employed for 0pernting the thread-finger. Fig. 9 is a detail view of the thread-detainer 371.

Having reference to the drawings,-A portion of the arm or got'ascneck of a sewing nun-himis represented at 1, Figs. 1 to 4, the head thereof being designated 2 in Figs. 1, :2 and 3. A portion of the work-supporting lmsl' is represented at 3. the work-s1! )port itself upon thotop of the said post ing dvslglmtcd 4. A wax-potis shown at 5, in Figs. 1, 3 and 5, upon the arm 1. The usual rotating shaft which is mounted in hearings in the arm is indicated at 6.

At 7 is :ndisk which is fixed upon the shaft 6 within the head of the machine, and from which motion is transmitted to various working parts through the operatin connections which hereinafter are explaine An owl is shown at 8, Fig. 3, 9 being the owl-bar, and 10 a link joining the awl-bar to an actuating crank-pin 11, Figs. 1, 5 and (5, which is carried by the disk 7. By means of the said crank-pin and link the owl-bar and awl are reci rocated verticall in the working of the mac line, as usual. l or the purpose of simplifying the drawings and showing clearly the take-up and other parts which more immediately act in connection with the needlethread a, the owl and owl-bar are omitted from Figs. 1, 2, 5 and 6.

12 is a needle, 13 being a portion of the needle-bar carrymg the same.

14, Fig. 1, is a rotary shuttle, which is mounted u 10!! the work-supporting post 3.

The gni es for the awl-bar and needle-bar, and the actuating connections for the needlebar and shuttle, are not shown. They may be as usual or as preferred.

15 is a thread-guide by which the thread a is applied to the needle 12. and laid in the open eve thereof. The said thread-guide is carri by an arm projecting downward from a yoke 16, F' 1 and 2, which latter is mounted pivota y by means of centerscrews 17, 17, u n the opposite ends of a block 18, the said block beil supported by a shaft 1!) to which it is fitter with capacitv to turn indepcndcntlp thereon. The sha t 19 is mounted in a suitable hearing or hearings at 191, Fig. 2, in connection with the fixed head 2. For the purpose of actuating the thread-guide to cause the (lclivcry-c \-'r or tube thereof to travel around the hooked upper end of the needle, when the latter is in a raised 'ition, and thereby place the needle-thrca within the open eye of the needle, the yoke 16 is provided with an upwardly-projecting arm 1131, Figs. 1 and .2. carrying a camollower 162 working in a cam-groove 163 in the periphery of the disk 7 upon the shaft 6. The said cum-follower is pressed toward the bottom of said groove by force which is transmitted to the arm l vl from a contracting spiral spring 164. Fig. .2, through a rocker 167, the said spring having one extremity thereof engaged with a pin or screw 165, that is up lied to the lower portion of head 2, and t in other extremity thereof connected with u rearwardly-proshaft 19 an jecting arm 166, Fig. 2, on the said rocker 167, the latter being mounted in a bearing at 168 upon the head .2, and being provided with a linger 169 which bears against the back of the arm 161 of the oke. The camgroovc 163 is formed with th lateral and radial throws, as represented in Figs. 1, 2, 5 and (i:that is to say, it is shaped to communicate movement to the arm 16]. both radially withrespect to the shaft 6, and also in the direction of the length of the said shaft. Thereby, the yoke 16 and block 18 are caused to turn around the supporti shaft- 19, and in addition the yoke is can to turn or swivel upon the center-screws 17, 17, relative to the block 18, in a direction at right-angles to the direction of the former turning movement. The result of these combined movements is to cause the thread-guide to travel in a path encircling the needle, as required in order to apply the thread properly to the latter. '20 is the threader, or thread-measuring finger, it being carried by an arm 21 rojecting downward from the d fast with the latter. For the purpose of rocking the shaft 19 to move the thread-finger from its position in F 5 to that in Fig. 1, and vice versa, the sai shaft is furnished with an upwardly. projecting u rm 22, fast thereon, with which is connected pivotally the strap '23 that is applied to an eccentric :24 fast upon the shaft'S. A crank 24 and connecting rod 24", as shown in Fig. 8 are the equivalent of the said eccentric and strap.

Having reference, now, to the take-up, 25 is the swinging arm thereof, and 26 is a take-up roll that is mounted upon the said arm. The arm 25 is fast upon one end of a roekshaft 27, Figs. 1. 5, 6 and 'I the said rockshaft being supported in a bearingsleeve 281. Figs. 3 and 7, which is fixed 1n lace within a rearward projection 29 of the lead 2. T o secure a proper bearing fitof the rockshaft 27 within the beating-sleeve 281, the said rockshaft is furnished with o posite cones 271, 272, and the opposite en portions of the sleeve 281 are tapered interiorl to fit the said cones. The cone 271 adjaeentthe arm '25 is fixed upon or forms f an integral portion of the rockshaft, while, for the purpose of enabling wear to be taken up, the remaining cone 272 is adjustably applied to the rockshaft, so that the fit of the cones within the tapered hearings may tightened up when wear occurs. To proride for the ad'ustment, the inner portion of the rocksha t is screw-threaded to its free extremity, as indicated in Fig. 7. and the cone 272 is iuteriorly threaded to fit the screw-thread of the rockshuft, a lock-nut 273 being screwed upon the rockshaft at the large end of the cone 272 to prevent accidental loss of the adjustment of the latter. Forthe purpose of actuating the take-up 5 closing of the gri -devlce.

device, the roekshaft 27 is operativelv combined with the rotating shaft (5 by means of an arm 274 that is fast upon the said rockshaft, and a link 275 connecting the said arm 27-1- with the crank-pin 11, previouslv referred to, from which motion is transmitted to the awl-bar and awl. The arralwement and pro Jortions of the actuatiu r ((3- vioes of the ta e-up, as shown in the raw rugs, produce a quick taking-up action of the take-up arm and return movement thcrc of, followed by a relatively prolonged dwell of the said arm in its retracted position. 'illhe take-u roll 26, as shown clearly in (j 4 intermediate the thread-guide and a delivery or guide which is central with relation lo the path of movement of the takeup arm. To provide the said central dohvery, the rock-shaft 27 is bored eentrullv, longitudinally thereof, as shown best in Fig. 7. producin a thread-passage extending the length of the rockshaft, and the thread a after leaving the wax-pot 5 is conducted thmugh the said thread-passage, and thence to the thread-guide 15. The take-up arm carries, in addition to the roll 26, an intermittin ly-acting grip-device which com- )rises a xed jaw 28 that is constituted by a lock made fast to the said arm, and a movable jaw 29 that is constituted by one arm of a lever which is mounted by means of a pivotal screw 291 upon the take-up arm.

-The proximate or acting faces of the jaws 28, 29, are transversely serrated in order that when closed together they may more etiectuall hold the thread a against the strain w iich is incidentto the taking-up action. For the purpose of closing the gripdevice upon the t read and holding the same thus closed durin the taking-up action, a roll 30 is mount at a point conveniently adjacent the rockshaft- 27, upon a fixed support 31, and the mi] 292 of the movable jaw is extended into position to engage with the said roll. The roll constitutes a slationary bearing which, through the engage meut of the tail of the movable jaw 25) of the moving grip-device therewith in the lmrvement of the take-up arm, occasions tho The inner and outer surfaces of t m said tail are concentric, or approximately concentric, with the axis of the rockshaft 27, except that at or near the free cxtl'cmit of the tall the inner surface of the latter has an outward jog constituting a. relief which, when presented to the bearing or l'oll 30, aliords freedom to the movable member 29 to separate from the fixed member 28 of the grip-clerical. This joq' or relief is presented to the roll when the tare-u device occupies its completely rell'uctet position shown in Fig. 5, at which time. in cousvquuum! of the separation of the members 2H, 25!, of the grip-device. from each 5 out 6, acts upon the needle-thread otherthe thread is'free to be drawn lengthsholdder or incline at the inner end" of the saidjog or relief is carried past the bearing ouroll: 30,. with the result. that the movable the sleeve is secured jaw is turned. upon its pivot and caused to compress the thread against the fixed jaw. See Fig; 6. By the engagement of the roll with-the inner concentric portion of the tail of the movable jaw, the grip device ishcld closed upon the thread during the taking-up action, and until, by thcreturn movement or retraction of the take-up deviceithe jog or relief of the-toil of theaiuombl'e jaw is again presented tothe roll-'30. In Fig. 1 the said jog or relief is about. to be presented to the saidroll. For the purpose of facilitnt-in r the separation of the jaws as soon as sue presentation Occurs, the exterior concentric surface of the tail ofthe movable jaw receives the pressure of a pin or plunger 3? that. is held ina socket upon the arm 27% and backed up. by an expanding spiral spring 38 that is'containcd within the said.

socket.

For the pur of enabling the closeness of approach of t he movable jaw to the fixed jaw, and the ode cc of compression of the thread between tfiie two jaws, to be regulated as desired, provision 1s made for varv'ing the osition of the bearing or roll 30 radially witli res -t to the center of motion of the take-up evice. To this end, the support 31 is hung u n itpivot 311, upon winch pivot it is captfiile 0 being swung to carry the hearing or roll 30 either from or toward the said center of motion. For convenience in efiect-ing the adjustment, an adjusting or set-screw 312 fitted within a threaded hole that istapped through the support 31, the inner end of the said screw making contact with a portion of the block 32 to which the sup. ort 31 is pivoted. To enable the timing of t to closing and release of the grip-device of the rockshaft- 27 by providing the block 32 with one or more slots 321, concentric with the said axis, and by attaching the said block to theoutcr end of the arm of the carrier 34 -by means of screws 33, 33, passing the saidconcentric slot or slots 321, intot readed holes that are tapped into the said outer end. The carrier 34 IS supported in fixed osition by mounting it upon the hearing-s eeve 281, the said currier having a split hub. that is fitted upon a portion of the suidbeariug-sleeve that projects forwardly fromothe portion 29 of, head 2 within which the said hub being clumped upon the said portion of the sleeve by means of clamping-screws 341.

' ting a lar e shuttle to be used for In order to enable a considerable length of thread to be taken up by a nwvement of small extent of the take-up device, permitthe interlocking thread without. entailing undue length of stroke of the take-up device to Ltll't' for the amount of thread which is required for the passage over the shuttle, an opposing draft-device is employed. The said draft device herein is constituted by a draft-roll 35 that is pivoted upon a fixed arm 36 which is attached tothe carrier 3- the said draft -roll 35 being located in osltion to act on the thread between the grip-device and the moving takc-n roll 26. As the [ulna-up arm 25 is swung or the taking-up action, the portion of nu-dlc-thread which extends from the jaws of the grip-device past the take-n p roll 26 is carried by the movement of the said roll with the said arm against the stationur draft-roll 35, which latter holds back the thread in the form of a hight, [her-by multiplying the amount of thread that is taken up by a movement of the take-up arm of given len 'th. The grip-device, in conscquence of fiein located intcrmmliate the draft-roll and tie center of motion of the take-up arm, and upon the take-up arm itselfiserves, in traveling relative to the draftroll, to take np-a )ortion of the thread, as

shown by Fig. 6,- w iile, as a result of clumping the thread at the intermediate )oint aforesaid, it prevents any thread from being drawn from the snpplwside durin the tuklug-up action, compelling the drait to take place between the grip-device and the scam which is being stitched. By reason of cmploying the central bore of the rockshaft 2? as a thread-passage, so that the delivery of the thread on its way from the supply is efi'ected centrally with respect to the path of movement of the grip-device, the swinging movement of the grip-device during the. takin -up notion operates in a )illll which is concentric with the point of t elivcry of the thread from such passage. and consequently without any tendency to draw fresh thread forward from the supply.

At 371., 331. are the thread-dothint-rs by which the portion of thread I! cxlending from the t'lPiiVtJ') at the forward cud of the but" of the rock-shaft :3? to the threadguide 35 is prevented from twisting, kiukmg, or snarling when left slack by the rcturn movcim'nt of the tain up. um ms of the said thrcud-detainrrs. such mrlion of thread is held under control until u is drawn down in the course of the operations which are incident to the formation of the next stitch. T he thrrml-dctnint-r is mounted upon the stationary arm 36 by which tho fixed draft-roll 35 is curried: the other, 381. is cm'riod by the lake-up a rm 25. Each of the thread-dotinors is provided with two surfaces which are sutlicieutly lllhl' together r receivebe'tweenthem'su bstantiall allot the to pinch or compress thethread a when it is drawn in between themyand thereb retain the said thread'until it is drawn out om betweenuthein by the application .ofa proper degree of force. The thread-detainer 371 is formed of two plates, the rear portions. of which are {separated somewhat from each other-and receive between them the fixed draft-roll 35 [the separation at the rear of the saidldraf thread extends in ure-1i 'tgdirectionto the threadguide 15, asiu 1g. 5, 'throu 'h the space nt-the rear of the said; fixed-dra it r'oll, it wilhbe free from com ression between suchplates. At-the frontof-t esaiddraft-roll.

that is to say, at the right-bend side thereof in Figs. and 6, the plates'are closer to-' gether, to pinch or compress the thread when wardly adjacent the path of the take-up roll '26. practically to the forward limit of the it is drawn in between these portionsof the and itsroll 26 in taking-up. The for-- plates by the movement of the take-up arm ward .5 portions 10f the :pl atesf project forsaid pathas' indicated ';by.Fig.I .6, so that they thread which extends from'the xed draftroll as to the moving take-u u 2c in the extreme forwardwpositionlo --the----latter, as indiulted-bvthe said To facilitate l the entrance of the three 7 between the plates r g as it is carried forward by the movement of "the tnkemp device, "the "outer ed 7 p of the lates' .fi a re or diverge from eac other as indicated in 3,50 as to produce an entrance'linto wh ch the-thread may readily find its'way, and through. which it'may wedge its way in between the plates. The

thread-detainer 381 is composed of plates which, are attached to the take-up arm 25 intermediate the central delivery for the thread and the ition of the fixed draftroll 35. .aind a so illon'gside the jaws or thread-engaging members of the rip-device. The outer. one of the said 1) ates is formed with a born or extension rojecting in F ig. 5 the thread a extends downward from the central delivery between the sep- {nrated {Saws or acting members of the grip tweeu the s or or horn of the outer plate of the threadetniner 381 and the corres wnding portion of theinner plate therenfrm-1j -lu-twe n such spur oifihorn and the I tu n-up'ur n 25, nnd thence between the 1*.

device,

nruted rear. portions of the plates of tie.

t -'roll being *such that when the thread-detainer 371, to the thread-guide 15. As the take-up arm swings from the posi tion of Fig. 5 to the position of Fig. 6, the lnovement of the take-up roll 26 in unison with the said arm causes the rtion of thread which extends from the fixed draftroll to the said take-up roll 26 to enter between the closel -ap roximatcd surfaces of the plates of t e t read-det-ainer 371, where such portion is held by the compression which it undergoes. At the same time the .thread-detainer 381 is carried around so that its )lates receive between them the portion of t iread which extends from the jaws of the grip-device to the fixed draft-roll 35, such portion of thread being subjected to com- )ression between the said plates, and therey held. As now the take-up device swings back from the position of Fig. (5 toward that of Fig. 5, releasing the thread from strain intermediate the gri -device and the scum which 18 being stit ed, the slack of the thread remains held by the two thread-detainers, which latter, however, permit the thread to be drawn down readily by the action of the thread-measuring'fi er 20 in extending the needle-thread as in icated in Fig. 1, and b the passageof the shuttle through the lotip rawn down by the needle.

, I y movnilg in unison with the ip-device, the threadetainer 381 is enabl to control effectively the portion of thrwd extending between the grip-device and the fixed draftroll 35 dur' the. return movement of the said arm. action of the two thread-detaineis 371 and 381 in the case of the described embodiment of the invention. The one marked 371 acts as a assive holder of one rtion of the three ing-up movement of the take-n arm it servi to restrain such portion simply through its frictional engagement with the same. The other, 381, is a live or active controller which, by its return movement in 110 company with the arm 22, operates to withdraw from its tantened "tlon that portion of the thread with which it engages. The take-up device, the grip-device, and the thrend-detainer 381, are all actuated by 1 means of the si le crankin 11 on the rotat-i shaft 6, ii hich cran )in also serves for e actuation of the owl-bar and awl. The take-up roll, gri )-device, and the threaddetainer 381, are n1 supported and carried 2 by the same moving part or member of the machine. The construction of the machine is rendered very simple by reason of these two features. For the purpose of enabling the loo h of the up y the action of the take-up device to be varied, the fixed draft-roll is made tldjuh'table forward and back in a line parallel with the nth of movement of the take-up roll 26.

To his end, the carrier 34 is capable of be- 1 0 ere is this difierenee in the which has been exten ed by the takrtion of thread which is taken 1 25 -'ing-;tnrned around bearing-sleeve 271.

'lorpermit such turning to. be "effected, the fscrewsj341 are loosened,iand after therarrier.

has been-shifted to" ive the desired position t umd aftrroll 135 in p ace fccted a. compensating adjustment of block 32 isn adeifxneces'saryin order that thelieal v ing pr-rqll 30 my act with the, r nired tim- 3 of ant nnas. mum-1 the thickness of. the material which is being-stitched to be con- The: described construction emb dies a positiYemra'nkniotion for the actuation of the take-uni No adjustabilit-y of the actuat- ,ing.inechanism' is required for ther'egulation'gjpiii the,working. The provisions for a djust'abilitynre all-in connection with the afi cd 1 i ft$ m ereby; such prov ion in o e "l'lO-l mconvem u 1-ot fdevice 40 as apes thethread a ingjmeiuber ;ivit ll' the, provisi w nt; u

between :the iwa x-lpot 5 and the inner end of thdmbhiftfi'i'! The said pull-off device consists of upwardly bent arm having its 1 extremity notched to engage with the thread liugthei-rising movement. .of .the arm. TMEpifll-bfl arm .i t k "nonf -h inner end "p f theilrochshaft 19 of {the thread-fin r 20.

. Consequently one train of operating evices for "thd actuation of boththe threadfinger and the pull-off. Simultaneously with the movementof the thread-finger by which i h e easuredportion of the thread is drawn out-as in 1 mliininary to the next de a reat r thence e, the pnll-ofl' is caused to draw {forward a-similar quantity of thread the supply in readiness for the .next

suc e ln action of the thread-measurer. T ,ta-ileous actions of the thread- Ineasurer and..pull-ofi take place while. the

, thread remains held between them by the closed grip-device. The pull-ofl device 40 engages with the thread between the wax-pot $1, and a timed thread-guide 41 projecting from i the arm 1 and having a hole through which thefthread passes. The eccentric 24, or equivalent crank, strap or connecting-rod, and lat-11122, are arra ed-and combined as shown to occasion a. differential movement of the thread-finger 20 and pull-off 40. The

1 inidfjprolonged.

gnltnjexuentis relatively slowand is short in A'constan't Q,

"ration; 1 Y

tension-device shown in Fi 3 tl-[lilAy'lS caused to act upon the. thread v esaidscrewsare tight en'ed-tdclamp theqcarricrffixedly again. =Afte1'.; thisadjustment has been ef-' a. ce a ai1lid-h ndicap Tlulsl avoidi loading down 'anyiarapldly mov-' 'or adjust-.

;,tween the guide 41 and the entrance to th 1101'? Of th irqckslmft 27- The said tensiondevice comprises a fixed aw 42, Fig. 4, and

a movable Jaw 43, The aw 43 is pivoted at Hmnd t e up ar ly x ndilw tail of the same is acted upon by the yiel mg force of an earpandlng' spring- 442 which is contained -wi th1n -a fixed tubular socket 45, the said tome being-transmitted from the spring to themovab e-ciamping-jaw by means of a )in or plunger J46 wluch sl des within the soc 'et- 45 18111116? end of the said pin or plunger being acted gainst by the sprin" and its outer end being in contact with the tail of the movable jaw. The s )ring 44 is confined .betweent-he inner end 0 the plunger 46 and theinner end of an adjusting screw 4A1, Fig. 4. By turning the said screw the degree of compression of the spring may be varied to secure'the required tension of the thread. The relatirelysfixcd portion of the tensiondevice is Plfbv'ided with a s lit socket 47, Fig. 3, wh ch fits a in 48 rising fl'oll'l the portion 29 of the head 2, the said split socket iavlng a clamping screw 49 by means of which the socket may be contracted upon the support n pin 48 to sup rt the tension- "devloe atihe required heigli ti in the machine. By upon the ta of the jaw 43 by han the said Jaw may be moved away from thecoxnpanion jaw 42 so as to relieve the thread from compression and thereby release the tension, whenever for any reason this release is desired.

To facilitate the operation of threading n J, the thread-passage throi the rock- 5 raft 27 of the take-up demons, and that through the wax-pot 5, are located in line with each other, as will appear from Fig. 3, and the jaws 42, 43, of the constant tenslondevice are arranged between the said threadpassa es, so that the thread asses in a strai'g .t line thro 'h the threa -passage of the wax-pot, then tween the jaws 42, 43, and then throu the thread-passage of the rockshaft 27. his arrangement secures convenience in threadil f up, by rendering it possible to push lengt hwise through the passage of the rockshaft 27, then between the jaws 42, 43, after the latter have been separated by hand, and then through the threadassage of the wax-pot 5, a w re having the lzaadin end thereof formed with a hook suitabFe to have the thread engage therewith, and then withdraw the said wire after the thread has been canght.within the said hook, thus pulling the thread through the threadpassages and tension-device by means of the wire.

I claim as my invention 1. In combination, a take-up, a grip-device carried thereby, and a stationary actuator for the said grip-device.

2. In combination, n take-up min, a grip- ]ever fulcrmucd upon the said arm and operand operatin ating to hold the thread coming from the source of supply, andastatlonary actuatingbearing for the grip-lever.

3. In combination, a take-up, a gr1 )(lGVlCG carried by the take-up and operate by the movement of the latter to hold during the taking-up action the thread coming from the source of supply, and ad ust ng means to regulate the timing of the gripping action with relation to that of the take-up.

4. In combination, a take-up, a gr1 -dev1ce carried by the take-up and operate by the movement of the latter to hold during the taking-up action the thread coming from the source of supply, and ad1ust1ng means to regulate the degree of the clamping action of the grip-device.

5. In combination, a take-up, a grip-device carried by the take-up and operatedby the movementof the latter to hold during the taking-up action the thread comin from the source of sup ly, and adjusting BVXCGS to reguia-te the tuning of the gripping action and the degree thereof.

6; In combination, a take-up, a grip-device carried by the take-up, a stationary bearmg by which the grip-device is actuated, and ad just-ing means to regulate the time relation of the action of the grip-device with respect to that of the take-up.

T. In combination, a take-up, a gri atgfvlce carried by the take-up, a stationary ring by which the -device is actuated, and adjusting means to reqnlate the degree of the clam mg action of tile grip-device.

8. n combination, a takeoip, a grip-device carried by the take-up, a stationarv hearing by which the grip-device is actuated. and adjusting devices to regulate the time and the degree of clamping action of the grip-device.

in combination, a draft-device occupying a fixed position, thread gripping jaws,

means for the so] 'ipping jaws by whic 1 they are caused to c amp the thread and then moved relative to the said draftdevice to take up the thread.

10. In combination, a draft-device, a takeup arm having means to engage the thread beyond the said draft-device, and a moving grip-device engaging with the thread between the said draft-device and the center of vibration of the said arm and ctr-acting with the mid draft-device to take up the thread.

11. In combination, a draft-device, a takeup arm havin" means to engage the thread beyond the said draft-device, a moving gripdevice engaging with the thread between the said draft-device and the center of vibration of the said take-up arm, and means to adjust the draft-device around the said center.

12. In combination. a draft-device, a takeup arm having means to engage the thread beyond the dmft-device, and a taking-up grlp moving in unimm with the said arm, actuated by the movement of the latter, on-

gaging with the thread between the center of vibration and the said draft-device and co- 0 )erating with the draft-device in taking up t 1e thread.

13. In combination, a draft-device, a takeup arm coiiperating with said draft-device and also having in connection therewith a thread-supply delivery atthe center ofniovement of said arm, and an intermittent gripdevice moving with the take-up arm enga ing with the thread between the said dra tdeviee and the center of vibration of the said arm and coiiperating with the draft-device in taking up the thread.

14. In combination, a draft-device, a takeup arm coiiperating with said draft-device and also having in connection therewith a thread-s11 pply delivery at the center of move munt of said arm, and a grip-lever fulcrunied upon the said arm operating to grip the thread intermittingly between the said draft-device and the center of vibration of the said arm and cooperating with the draftdevice in taking a the thread.

15. In combinatlon, a draft-device, a takeup and a taking-up grip-device acting to take up lengths of the thread at both sides of the said draft-device, and a rotating crank operating the said take-up and taking-up grip-device.

16. In combination, a take-up, a grip-device moving in unison with the take-up, and a thread-detainer with which the thread is caused to become engaged by the operative movement of the take-up.

17. In combination, a take-up having a moving draft-device, and an opposing draftdevice. an intermittent grip-device operating at (be time of the take-up action to hold back the thread at the Supply-side. :llni threaddctaiuer intermediate the said draft-devices and with which the thread is caused to in come engaged by the action of the take-up.

18. In combination, a take-up having a moving draft-device, and an opposing draftdevice, an intermittent grip between the said draft-devices and the source of supply, and a thread-detainer adjacent the said oppofiing draft-device with which the thread is caused to become engaged by the action of the take-up.

111. The combination with a take-up arm having a moving draft-device, an opposing draft-device, and a moving grip engaging with the thread between the stationary draftdevice and the source of supply, of a threaddetainer adjacent the said opposing draftdcvicc with which the thread 15 cam-ed to become engaged by the action of the take-u p arm.

20. The combination with a take-up arm having a moving draft-device, an opposing draft-device, and a moving grip engaging with the thread between the opposing d 'a l'idevice and the source of supply, of Hurad- "causet tobecome' engaged by the action of the take-up.

In combination, a taking-up grip-device, an opposin draft-device. and a-t-hreaddet-ainer with which the thread is caused to become engaged by the taking-up action.

23. In combination, a take-up engaging the thread at Separated points, a draft-derice with which the thread is engaged between the said points. a stationary threaddetainer with which the thread is caused to become engaged by the action of the take-up, and a thread-detalner moving in unison with the take-up.

24. In combination, a take-up arm engaging with the. thread, a grip-device moving in unison with the said arm and operated by the movement of the latter, an opposing draft-device engaging with the, thread between the points at which the latter 15 engnged by the take-up arm and grip-device, a

stationary thread-detainer with which the thread is caused to become engaged by the action of the take-up arm. and a threaddetainer moving with the said takealp arm.

In a hooked-needle sewing'machinedn combination, a hooked needle. :1 threadguide for laying the thread in the open eye of the needle, a thread-finger engaging with the thread to provide slack to obviate rendering of the thread through the said eye,

.a pull-oil. and a rotating eccentric in operative connection with the said thrcaddinger am! pull-oil and actuating the same.

20. In a hooked-needle sewing-machine,1n

. combination, a hooked needle, a threadguide for laying the thread in the open eye of the needle, :1 thread-finger engaging with the thread to provide slack to obviate renderiug of the thread through the said eye, a pull-oil, and an eccentric operatin the said thlcad-finger and pnll-off with (ifi'erential movement, the acting portion of which latter is rapid and relatively long while the idle portion thereof slow and relatively short.

27. In combination. relatively movable draft-Juices around which the thread becomes bent and extended by the taking-up action, an intermittent thread-grip at the eupply side of such devices. and a threadd'etainer with which the thread is caused to become engaged by the taking-up action.

:28. In combination, relatively movable draft-devices around which the thread he- ('OI'HES bent and extended by the taking-up action. an intermittent grip-device made effective by the taking-up action to grip the thread coming from the source of. supply, and a tln'ead-detainer with which the thread is cruised to become engaged by the takingup action.

29. In combination, a draft-device occup 'in a fixed position, and a grip-device which itself coacts with the said fixed draftdevice in taking-up the thread and which, in being moved. first actuated to grip the thread at the sup )ly side of th said fixed draft-device and then by its continued movement'acts efl'ectivelv to take up the thread.

30. In combination. a draft-device. a thrcad-detainer adjacent the same with which the thread is caused to become engaged by the action of the take-up in takingnp, and a moving take-u) device having means to engage the threat at both sides of the said draft-device and to grip during the taking-up action the thread coming; from the source of supply- 31. In combination, a. draft-device, a threzul-detainer adjacent the same, and a moving take-up havin means to en age the thread at both sides of the. said dra t-device and to grip during the taking-up action the thread comingjrom the source of supply and also having a srt'ond thread-detaincr connected therewith.

32. In -combination relatively movable FRANK \Y. MERRKYK.

'itnesses:

(n.as. F. lhramm. Em'rn J. Axnnnsox. 

